Only the instinct to survive

- Tomorrow, you'll be one of us.
- I love Becky. Tomorrow, will I feel the same?
- There's no need for love.
- No emotion? Then you have no feelings, only the instinct to survive. You can't love or be loved! Am I right?
- You say it as if it were terrible. Believe me, it isn't. You've been in love before. It didn't last. It never does. Love, desire, ambition, faith... without them, life's so simple, believe me.

Invasion of the Body Snatchers, Don Siegel (1956)

(ou en français : "L'invasion des profanateurs de tombe")